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Technical Data Sheet
PartsTable / STORAGE_HDD / 81Y9794
81Y9794 ✓ Verified by PartsTable
LENOVO · STORAGE_HDD · 3.5_SATA_HDD
WHAT YOU NEED TO KNOW
SAS backplane supports SATA, not vice versa NL-SAS = SAS protocol at nearline (7.2K) speed — NOT SATA
Gen8 LFF tray ≠ Gen10 tray — different screw holes
PRODUCT OVERVIEW

LENOVO 2TB 7200 rpm SATA 3.5-inch Hot-Swap HDD. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 7025-01-671-6407, indicating validated use in U.S.

government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels. Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
STORAGE_HDD→ 3.5_SATA_HDD→ 81Y9794
NSN: 7025-01-671-6407
FSC: 7025
CAGE: F1219 — CIE IBM FRANCE (FRA)
SPECIFICATIONS
Part Number81Y9794
ManufacturerLENOVO
Capacity2TB
NSN7025-01-671-6407
COMPONENT DIAGRAM
RELEASE LATCH 2TB NL-SAS 7.2K 81Y9794 LENOVO NL-SAS INTERFACE INTERPOSER SAS drive in SATA tray? Check board compatibility 3.5" (101.6 x 146mm) LFF 3.5" DRIVE | 2TB | NL-SAS 7.2K NL-SAS uses SAS protocol at 7.2K RPM | SAS backplane supports SATA, not reverse Tray generation matters | Gen8 LFF tray differs from Gen10 TITLE LFF 3.5" DRIVE PN 81Y9794 MFR LENOVO
KEY FEATURES
•
2TB Capacity
•
DRIVE SIZE: 3.50
•
DATA STORAGE CAPACITY: 2.0 TERABYTES
•
DRIVE QUANTITY: 1
•
INTERFACE TYPE: SERIAL ADVANCED TECHNOLOGY ATTACHMENT
•
DESIGN TYPE: HARD DISK
•
UNIT DESIGN: INTERNAL
TYPICAL APPLICATIONS
  • Enterprise storage arrays and SANs
  • Direct-attached storage (DAS) expansion
  • Database tier storage (OLTP, OLAP)
  • Virtual machine datastore expansion
  • Backup-to-disk and disaster recovery targets
  • Content delivery and media streaming storage
TECHNICAL CHARACTERISTICS (FLIS)
DRIVE SIZE3.50
DATA STORAGE CAPACITY2.0 TERABYTES
DRIVE QUANTITY1
PART NAME ASSIGNED BY CONTROLLING AGENCYIBM HARD DISK DRIVE
INTERFACE TYPESERIAL ADVANCED TECHNOLOGY ATTACHMENT
DESIGN TYPEHARD DISK
UNIT DESIGNINTERNAL
DRIVE SIZE3.50
DATA STORAGE CAPACITY2.0 TERABYTES
DRIVE QUANTITY1
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
81Y9795Compatible
IBM 2TB SATA 6G 7.2k LFF G2 HDD - Fru
compatible
81Y9796Compatible
IBM 2TB SATA 6G 7.2k LFF G2 HDD - Sbb
compatible
90Y8822Compatible
IBM 2Tb SATA 6G 7.2K LFF G2 HDD - Option
compatible
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
THIS PART SUBSTITUTES FOR 3
90Y8822SUBSTITUTE
IBM 2Tb SATA 6G 7.2K LFF G2 HDD - Option
IBM
81Y9795SUBSTITUTE
IBM 2Tb SATA 6G 7.2K LFF G2 HDD - Option
IBM
81Y9796SUBSTITUTE
IBM 2Tb SATA 6G 7.2K LFF G2 HDD - Option
IBM
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FREQUENTLY ASKED QUESTIONS
What is 81Y9794?
81Y9794 is a LENOVO 2TB 7200 rpm SATA 3.5-inch Hot-Swap HDD manufactured by LENOVO. It is classified as a STORAGE_HDD (3.5_SATA_HDD).
What parts can replace 81Y9794?
There are 3 known substitutes for 81Y9794: 81Y9795, 81Y9796, 90Y8822. Substitute compatibility should be verified for your specific system.
What is the NSN for 81Y9794?
81Y9794 is cataloged in the Federal Logistics Information System (FLIS) under NSN 7025-01-671-6407. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026